I have cross-platform Xamarin project. Now i made a TopBar ContentView to put a red topbar on my pages which have a back button on the left, page title on middle etc. It's something like this.

    <ContentView.Content>
        <StackLayout>
            <AbsoluteLayout BackgroundColor="{StaticResource PrimaryColor}"
                            HorizontalOptions="FillAndExpand"
                            HeightRequest="50">
                <ImageButton x:Name="BackButton"
                             x:FieldModifier="public"
                             BackgroundColor="Transparent"
                             Clicked="BackButton_OnClicked"
                             Source="whitebackbutton.png"
                             Margin="10, 0,0,0 "
                             AbsoluteLayout.LayoutBounds="0, 0.5, 30, 30"
                             AbsoluteLayout.LayoutFlags="PositionProportional" />
                <Label TextColor="White"
                       FontSize="Large"
                       HorizontalTextAlignment="Center"
                       VerticalTextAlignment="Center"
                       x:Name="TopBarLabel"
                       HorizontalOptions="CenterAndExpand"
                       AbsoluteLayout.LayoutBounds="0.5, 0.5, -1, -1"
                       AbsoluteLayout.LayoutFlags="PositionProportional"></Label>
                <StackLayout x:Name="RightButtonsLayout"
                             Orientation="Horizontal"
                             IsVisible="False"
                             Padding="0"
                             AbsoluteLayout.LayoutBounds="1, 0.5, -1, -1"
                             AbsoluteLayout.LayoutFlags="PositionProportional">
                 ////
                </StackLayout>
            </AbsoluteLayout>
        </StackLayout>
    </ContentView.Content>
</ContentView>

For IOS i used a 30 unit padding from the top because i wanted to prevent the clashing of my topbar and ios topbar(time etc.).

            if (Device.RuntimePlatform == Device.iOS)
            {
                Padding = new Thickness(0, 30, 0, 0);
            }

Back button work fine in UWP, Android and IPad. But it's little hard to tap on Iphone. Almost every time i have to tap twice to make it work. What am i doing wrong?